Fix syntax error (verify_mode needs to be a hash key) (#7)

* verify_mode needs to be a hash key

as seen in https://github.com/ruby/ruby/blob/3a05da132184ee2a1ccac86b4b7fa865dc05c846/lib/net/http.rb#L575

* updated changelog

* used new 1.9 hash syntax

replaced hash rockets with symbol notation

CHANGELOG.md

@@ -4,6 +4,7 @@ This project adheres to [Semantic Versioning](http://semver.org/).
 This CHANGELOG follows the format listed at [Keep A Changelog](http://keepachangelog.com/)
 
 ## [Unreleased]
++- verify_mode needs to be a hash_key: [sensu-plugins-uchiwa/issues/5](https://github.com/sensu-plugins/sensu-plugins-uchiwa/issues/4)
 
 ## [0.0.4] - 2016-06-15
 ### Added

bin/check-uchiwa-health.rb

@@ -79,7 +79,7 @@ def run
     url      = URI.parse(endpoint)
 
     begin
-      res = Net::HTTP.start(url.host, url.port, :use_ssl => url.scheme == 'https', verify_mode => OpenSSL::SSL::VERIFY_NONE) do |http|
+      res = Net::HTTP.start(url.host, url.port, use_ssl: url.scheme == 'https', verify_mode: OpenSSL::SSL::VERIFY_NONE) do |http|
         req = Net::HTTP::Get.new('/health')
         req.basic_auth config[:username], config[:password] if config[:username] && config[:password]
         http.request(req)